My birthstone. PAIR OF BLACK OPAL AND DIAMOND EARRINGS The pear-shaped black opal drops supported on long fringes of foliate motif, set with 52 round diamonds weighing approximately carats, mounted in platinum.
Australian Black Opal, Ruby and Diamond Swan Pin/Pendant, circa The body of the swan is an Australian Black Opal weighing the neck, head and tail are decorated with pavé-set diamonds weighing and the eye is a small ruby
art deco black opal and diamond pendent earrings, circa Each claw mounted drop-shaped black opal, suspended from an articulated surmount composed of collet-mounted old brilliant-cut diamonds spaced by two millegrain-set single-cut diamond sections,
A PAIR OF ART DECO PEARL AND DIAMOND EAR PENDANTS, Each designed as an articulated line of millegrain- and collet-set circular- and single-cut diamonds, terminating on a similarly-set stylised loose ribbon suspending a framed pearl drop.
An Art Deco Opal, Diamond, Platinum Necklace. The necklace features a pear-shaped black opal cabochon, suspending a detachable and reversible pear-shaped black opal cabochon enhanced by European-cut diamonds, set in platinum.
An early Art Deco gold, amethyst and diamond pendant, Russian, circa Designed as a stylised lotus flower an octagonal amethyst and small brilliant-cut diamonds, suspending a pendant set with a round faceted amethyst drop and two small brilliant-cut
Eugene Feuillatre - French Art Nouveau Diamond, Opal, 18 karat Gold and Enamel Ring. The ring has a center black opal surrounded by 8 rose-cut diamonds and 4 enamel wings. The closed gallery is decorated with a gold/enamel scrollwork design.
A PAIR OF NATURAL PEARL AND DIAMOND EARRINGS Each set with a pierced diamond-set bar-link suspending seed pearl and diamond tassels, joined to the white natural pearl drop terminal measuring 11.17 x 8.67 x 8.52 and 10.97 x 8.77 x 8.68 mm, flanked by two collet-set pear-shaped diamond terminals, mounted in white and yellow gold, 6.4 cm long
PAIR OF FIRE OPAL AND DIAMOND PENDENT EARRINGS, EARLY 20TH CENTURY Each set with a pear-shaped fire opal, suspended from an articulated line of millegrain-set circular- and single-cut diamonds, hook fittings, fitted case.